const fs = require('fs')
const util = require('util')
const mineReadFile = util.promisify(fs.readFile)
async function main () {
    try {
        let data1 = await mineReadFile('./1.html')
        let data2 = await mineReadFile('./1.html')
        let data3 = await mineReadFile('./1.html')
    } catch(e){
        console.log(e)
    }
    

}
main()